Khaibat Magomedtagirovna Musaeva (2017) “ Impact of the Shadow Activity on Social and Economic Relationships, Income Level and Welfare of the Population”, Social Behavior Research and Practice, 2(1), pp. 27–32. Available at: https://openventio.us/index.php/SBRP/article/view/300 (Accessed: 27 July 2026).